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<div class="document" id="web-widget-bokeh-chart">
<h1 class="title">Web Widget Bokeh Chart</h1>

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<p><a class="reference external image-reference" href="https://odoo-community.org/page/development-status"><img alt="Production/Stable" src="https://img.shields.io/badge/maturity-Production%2FStable-green.png" /></a> <a class="reference external image-reference" href="http://www.gnu.org/licenses/lgpl-3.0-standalone.html"><img alt="License: LGPL-3" src="https://img.shields.io/badge/licence-LGPL--3-blue.png" /></a> <a class="reference external image-reference" href="https://github.com/OCA/web/tree/18.0/web_widget_bokeh_chart"><img alt="OCA/web" src="https://img.shields.io/badge/github-OCA%2Fweb-lightgray.png?logo=github" /></a> <a class="reference external image-reference" href="https://translation.odoo-community.org/projects/web-18-0/web-18-0-web_widget_bokeh_chart"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external image-reference" href="https://runboat.odoo-community.org/builds?repo=OCA/web&amp;target_branch=18.0"><img alt="Try me on Runboat" src="https://img.shields.io/badge/runboat-Try%20me-875A7B.png" /></a></p>
<p>This module add the possibility to insert Bokeh charts into Odoo
standard views.</p>
<p><img alt="Bokeh Chart inserted into an Odoo view" src="https://raw.githubusercontent.com/OCA/web/18.0/web_widget_bokeh_chart/static/description/example.png" /></p>
<p><a class="reference external" href="https://bokeh.pydata.org">Bokeh</a> is a Python interactive
visualization library that targets modern web browsers for presentation.
Its goal is to provide elegant, concise construction of basic
exploratory and advanced custom graphics in the style of D3.js, but also
deliver this capability with high-performance interactivity over very
large or streaming datasets. Bokeh can help anyone who would like to
quickly and easily create interactive plots, dashboards, and data
applications.</p>
<p>If you want to see some samples of bokeh’s capabilities follow this
<a class="reference external" href="https://bokeh.pydata.org/en/latest/docs/gallery.html">link</a>.</p>
<p><strong>Table of contents</strong></p>
<div class="contents local topic" id="contents">
<ul class="simple">
<li><a class="reference internal" href="#installation" id="toc-entry-1">Installation</a></li>
<li><a class="reference internal" href="#usage" id="toc-entry-2">Usage</a><ul>
<li><a class="reference internal" href="#using-a-char-field" id="toc-entry-3">Using a Char field</a></li>
<li><a class="reference internal" href="#using-a-json-field" id="toc-entry-4">Using a Json field</a></li>
</ul>
</li>
<li><a class="reference internal" href="#known-issues-roadmap" id="toc-entry-5">Known issues / Roadmap</a></li>
<li><a class="reference internal" href="#bug-tracker" id="toc-entry-6">Bug Tracker</a></li>
<li><a class="reference internal" href="#credits" id="toc-entry-7">Credits</a><ul>
<li><a class="reference internal" href="#authors" id="toc-entry-8">Authors</a></li>
<li><a class="reference internal" href="#contributors" id="toc-entry-9">Contributors</a></li>
<li><a class="reference internal" href="#other-credits" id="toc-entry-10">Other credits</a></li>
<li><a class="reference internal" href="#maintainers" id="toc-entry-11">Maintainers</a></li>
</ul>
</li>
</ul>
</div>
<div class="section" id="installation">
<h1><a class="toc-backref" href="#toc-entry-1">Installation</a></h1>
<p>You need to install the python bokeh library:</p>
<pre class="literal-block">
pip3 install bokeh==3.1.1
</pre>
</div>
<div class="section" id="usage">
<h1><a class="toc-backref" href="#toc-entry-2">Usage</a></h1>
<p>To insert a Bokeh chart in a view proceed as follows:</p>
<div class="section" id="using-a-char-field">
<h2><a class="toc-backref" href="#toc-entry-3">Using a Char field</a></h2>
<ol class="arabic">
<li><p class="first">Declare a text computed field like this:</p>
<pre class="literal-block">
bokeh_chart = fields.Text(
    string='Bokeh Chart',
    compute='_compute_bokeh_chart',
)
</pre>
</li>
<li><p class="first">At the top of the module add the following imports:</p>
<pre class="literal-block">
from bokeh.plotting import figure
from bokeh.embed import components
import json
</pre>
</li>
<li><p class="first">In its computed method do:</p>
<pre class="literal-block">
def _compute_bokeh_chart(self):
    for rec in self:
        # Design your bokeh figure:
        p = figure()
        line = p.line([0, 2], [1, 8], line_width=5)
        # (...)
        # fill the record field with both markup and the script of a chart.
        script, div = components(p, wrap_script=False)
        rec.bokeh_chart = json.dumps({&quot;div&quot;: div, &quot;script&quot;: script})
</pre>
</li>
<li><p class="first">In the view, add something like this wherever you want to display
your bokeh chart:</p>
<pre class="literal-block">
&lt;div&gt;
    &lt;field name=&quot;bokeh_chart&quot; widget=&quot;bokeh_chart&quot; nolabel=&quot;1&quot;/&gt;
&lt;/div&gt;
</pre>
</li>
</ol>
</div>
<div class="section" id="using-a-json-field">
<h2><a class="toc-backref" href="#toc-entry-4">Using a Json field</a></h2>
<ol class="arabic">
<li><p class="first">Declare a json computed field like this:</p>
<pre class="literal-block">
bokeh_chart = fields.Json(
    string='Bokeh Chart',
    compute='_compute_bokeh_chart',
)
</pre>
</li>
<li><p class="first">At the top of the module add the following imports:</p>
<pre class="literal-block">
from bokeh.plotting import figure
from bokeh.embed import components
</pre>
</li>
<li><p class="first">In its computed method do:</p>
<pre class="literal-block">
def _compute_bokeh_chart(self):
    for rec in self:
        # Design your bokeh figure:
        p = figure()
        line = p.line([0, 2], [1, 8], line_width=5)
        # (...)
        # fill the record field with both markup and the script of a chart.
        script, div = components(p, wrap_script=False)
        rec.bokeh_chart = {&quot;div&quot;: div, &quot;script&quot;: script}
</pre>
</li>
<li><p class="first">In the view, add something like this wherever you want to display
your bokeh chart:</p>
<pre class="literal-block">
&lt;div&gt;
    &lt;field name=&quot;bokeh_chart&quot; widget=&quot;bokeh_chart_json
</pre>
</li>
</ol>
</div>
</div>
<div class="section" id="known-issues-roadmap">
<h1><a class="toc-backref" href="#toc-entry-5">Known issues / Roadmap</a></h1>
<ol class="arabic simple">
<li>On 17, we could remove the char field and only use the Json Field</li>
</ol>
</div>
<div class="section" id="bug-tracker">
<h1><a class="toc-backref" href="#toc-entry-6">Bug Tracker</a></h1>
<p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/web/issues">GitHub Issues</a>.
In case of trouble, please check there if your issue has already been reported.
If you spotted it first, help us to smash it by providing a detailed and welcomed
<a class="reference external" href="https://github.com/OCA/web/issues/new?body=module:%20web_widget_bokeh_chart%0Aversion:%2018.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
<p>Do not contact contributors directly about support or help with technical issues.</p>
</div>
<div class="section" id="credits">
<h1><a class="toc-backref" href="#toc-entry-7">Credits</a></h1>
<div class="section" id="authors">
<h2><a class="toc-backref" href="#toc-entry-8">Authors</a></h2>
<ul class="simple">
<li>ForgeFlow</li>
<li>Creu Blanca</li>
</ul>
</div>
<div class="section" id="contributors">
<h2><a class="toc-backref" href="#toc-entry-9">Contributors</a></h2>
<ul class="simple">
<li>Jordi Ballester Alomar &lt;<a class="reference external" href="mailto:jordi.ballester&#64;forgeflow.com">jordi.ballester&#64;forgeflow.com</a>&gt;</li>
<li>Lois Rilo Antelo &lt;<a class="reference external" href="mailto:lois.rilo&#64;forgeflow.com">lois.rilo&#64;forgeflow.com</a>&gt;</li>
<li>Artem Kostyuk &lt;<a class="reference external" href="mailto:a.kostyuk&#64;mobilunity.com">a.kostyuk&#64;mobilunity.com</a>&gt;</li>
<li>Christopher Ormaza &lt;<a class="reference external" href="mailto:chris.ormaza&#64;forgeflow.com">chris.ormaza&#64;forgeflow.com</a>&gt;</li>
<li>Enric Tobella &lt;<a class="reference external" href="mailto:etobella&#64;creublanca.es">etobella&#64;creublanca.es</a>&gt;</li>
<li>Oriol Miranda Garrido &lt;<a class="reference external" href="mailto:oriol.miranda&#64;forgeflow.com">oriol.miranda&#64;forgeflow.com</a>&gt;</li>
<li>Bernat Puig Font &lt;<a class="reference external" href="mailto:bernat.puig&#64;forgeflow.com">bernat.puig&#64;forgeflow.com</a>&gt;</li>
</ul>
</div>
<div class="section" id="other-credits">
<h2><a class="toc-backref" href="#toc-entry-10">Other credits</a></h2>
<ul class="simple">
<li>This module uses the library
<a class="reference external" href="https://github.com/bokeh/bokeh">Bokeh</a> which is under the
open-source BSD 3-clause “New” or “Revised” License. Copyright (c)
2012, Anaconda, Inc.</li>
<li>Odoo Community Association (OCA)</li>
</ul>
</div>
<div class="section" id="maintainers">
<h2><a class="toc-backref" href="#toc-entry-11">Maintainers</a></h2>
<p>This module is maintained by the OCA.</p>
<a class="reference external image-reference" href="https://odoo-community.org">
<img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" />
</a>
<p>OCA, or the Odoo Community Association, is a nonprofit organization whose
mission is to support the collaborative development of Odoo features and
promote its widespread use.</p>
<p>Current <a class="reference external" href="https://odoo-community.org/page/maintainer-role">maintainers</a>:</p>
<p><a class="reference external image-reference" href="https://github.com/LoisRForgeFlow"><img alt="LoisRForgeFlow" src="https://github.com/LoisRForgeFlow.png?size=40px" /></a> <a class="reference external image-reference" href="https://github.com/JasminSForgeFlow"><img alt="JasminSForgeFlow" src="https://github.com/JasminSForgeFlow.png?size=40px" /></a></p>
<p>This module is part of the <a class="reference external" href="https://github.com/OCA/web/tree/18.0/web_widget_bokeh_chart">OCA/web</a> project on GitHub.</p>
<p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
</div>
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